2 057 009 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
18911400222761	14	44.1	old
41747047023217	14	45.2	2014-01-16 11:43:22
4919655972324858632641	22	72.1	2021-08-01 19:21:07

ECM

Digits	B1	Curves
25	50000	177 / 280

Estimated T-Level: 23.2 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-06	Oliver Kruse	48BA450512A65B27	2	0	1	3
Verified (Factored)	2017-11-15	kkmrkkblmbrbk	48BA450512A65B27	2	979467	1	3
Verified	2021-08-01	SRJ2877	1520084ABEBC55DB	3	876077	5	3

History

Date	User	Type	Result
2021-08-01	paulrector	CERT	PRP Certification Proof certified good
2021-08-01	SRJ2877	C-PRP	M2057009/18911400222761/41747047023217/4919655972324858632641 : 1520084ABEBC55DB PRP proof power = 7 PRP: Verified Proof certified good
2021-08-01	_p95holder_	F-ECM	Factor: 4919655972324858632641 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-15	kkmrkkblmbrbk	C-PRP	M2057009/18911400222761/41747047023217 : 48BA450512A65B27 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-06	Oliver Kruse	C-PRP	M2057009/18911400222761/41747047023217 : 48BA450512A65B27 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-01-16	TJAOI	F	Factor: 41747047023217